Schweitzer Engineering Laboratories SEL-701-1, Инструкция по эксплуатации

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Date Code 20011009
SEL-701-1 Monitor
Modbus
®
RTU Communications Protocol
10h Preset Multiple Registers Command
C.13
10h Preset Multiple Registers Command
This function code works much like code 06h, except that it allows you to write
multiple registers at once, up to 100 per operation. Normally, this function code will
only be used to write source addresses in the User map region. If you are accustomed
to 4X references with the function code, for 6-digit addressing, simply add 400001 to
the standard database addresses.
Table C.13 10h Preset Multiple Registers Command
Bytes Field
The Master Request Must Have the Following Format
1 byte Slave address
1 byte Function code (10h)
2 bytes Starting address
2 bytes Number of registers to write
1 byte Byte count (should be twice number of registers)
n bytes Byte count bytes of data
2 bytes CRC-16 for message
A Successful SEL-701-1 Monitor Response Will Have the Following Format
1 byte Slave address
1 byte Function code (10h)
2 bytes Starting address
2 bytes Number of registers
2 bytes CRC-16 for message